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Longitudinal Studies of Aging (LSOAs)

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The Longitudinal Studies of Aging (LSOAs) is a collaborative project of National Center for Health Statistics (NCHS) and the National Institute on Aging (NIA). It is a multicohort study of persons 70 years of age and over designed primarily to measure changes in the health, functional status, living arrangements, and health services utilization of two cohorts of Americans as they move into and through the oldest ages.


The project is comprised of four surveys:

What's New

The 1994-2002 LSOA II Linked Mortality File:

  • contains information based upon the results from a probabilistic match between the NCHS National Death Index (NDI) records and obtained death certificates.
  • provides mortality follow-up data (fact, date, and cause of death) from the date of LSOA II survey participation (1994-2000) through December 31, 2002.
  • includes all LSOA II participants aged 70 years of age and over.



Page Last Modified: November 26, 2008

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